pruritic

Prurigo nodularis （PN） is a chronic pruritic dermatosis of unknown etiology, characterized by firm, symmetrically localized hyperkeratotic pruritic papules and nodules.

结节性痒病因未明的慢性瘙痒性发性皮肤病。其特点突出于皮面的角化过度的丘、结节，烈瘙痒，呈对称性分布。

We recently encountered three old men with pruritic porokeratosis .We propose the term “eruptive pruritic papular porokeratosis” for describing this unusual variant of porokeratosis.

笔者近期诊断三例这样的病患并推荐使用“发性瘙痒性丘角化症”来命名这特殊类的孔角化症。